Of the smaller cathedrals of Italy I know none I prefer to that of Pisa; none that, on a moderate scale, produces more the impression of a great church. It has without so modest a measurability, represents so clean and compact a mass, that you are startled when you cross the threshold at the apparent space it encloses. An architect of genius, for all that he works with colossal blocks and cumbrous pillars, is certainly the most cunning of conjurors. The front of the Duomo is a small pyramidal screen, covered with delicate carvings and chasings, distributed over a series of short columns upholding narrow arches. It might be a sought imitation of goldsmith's work in stone, and the area covered is apparently so small that extreme fineness has been prescribed. How it is therefore that on the inner side of this façade the wall should appear to rise to a splendid height and to support one end of a ceiling as remote in its gilded grandeur, one could almost fancy, as that of St. Peter's; how it is that the nave should stretch away in such solemn vastness, the shallow transepts emphasise the grand impression and the apse of the choir hollow itself out like a dusky cavern fretted with golden stalactites, is all matter for exposition by a keener architectural analyst than I. To sit somewhere against a pillar where the vista is large and the incidents cluster richly, and vaguely revolve these mysteries without answering them, is the best of one's usual enjoyment of a great church. It takes no deep sounding to conclude indeed that a gigantic Byzantine Christ in mosaic, on the concave roof of the choir, contributes largely to the particular impression here as of very old and choice and original and individual things. It has even more of stiff solemnity than is common to works of its school, and prompts to more wonder than ever on the nature of the human mind at a time when such unlovely shapes could satisfy its conception of holiness. Truly pathetic is the fate of these huge mosaic idols, thanks to the change that has overtaken our manner of acceptance of them. Strong the contrast between the original sublimity of their pretensions and the way in which they flatter that free sense of the grotesque which the modern imagination has smuggled even into the appreciation of religious forms. They were meant to yield scarcely to the Deity itself in grandeur, but the only part they play now is to stare helplessly at our critical, our aesthetic patronage of them. The spiritual refinement marking the hither end of a progress had n't, however, to wait for us to signalise it; it found expression three centuries ago in the beautiful specimen of the painter Sodoma on the wall of the choir. This latter, a small Sacrifice of Isaac, is one of the best examples of its exquisite author, and perhaps, as chance has it, the most perfect opposition that could be found in the way of the range of taste to the effect of the great mosaic. There are many painters more powerful than Sodoma - painters who, like the author of the mosaic, attempted and compassed grandeur; but none has a more persuasive grace, none more than he was to sift and chasten a conception till it should affect one with the sweetness of a perfectly distilled perfume.